prologger tach issues

[greenmtnboys]

I have hooked up my prologger h20 temp, oil temp,boost gauge all work Tach and air fuel not working air fuel just blinks rdy and tach sits at o.I have it wired to the white wire off the cam sensor and nothing I have even switched out the gauge with one I know works.Is it possible that the cam sensor is not working but the sled still runs?My tach on the pod does work

 

[mbarryracing]

Just to verify, is this on an Apex?
Do you have a good ground and power?

 

[greenmtnboys]

Yes it is an apex the ground and power seem fine

 

[mbarryracing]

OK, I'm going to go out on a limb so bare with me... You say you tried another gauge that is known to work and the same thing happens, so odds are it's not the unit itself but more then likely the wiring harness unless you tried the harness for the other "known good" gauge...
Try just confirming the pin-out of the plugs (location of the wires in the plugs in the side of the gauge) are correct, maybe some terminals got switched at the factory?
Can you compare them to the other harness? Or try the other harness?

 

[greenmtnboys]

Great Call

YOU WERE RIGHT THE PLUG WAS WRONG "THANK YOU" I new it had to be something simple but overlooked the plug.If you are ever out in BC I owe you a beer,I have been kicking this around for days. Thanks again